Francis Hopcroft, PE, LSP, served in a variety of project management roles as a consultant and as a federal employee for two decades before entering the teaching profession in 1993. He continued his consulting services in the areas of civil and environmental engineering while teaching full-time at Wentworth Institute of Technology in Boston. Recently retired after teaching civil and environmental engineering for 23 years, he serves as the collection editor for the Environmental Engineering Collection at Momentum Press.